NO. II ECHINODERMS CLARK 1/ 



ECHINOMETRA INSULARIS H. L. Clark 



Locality. — Galapagos Islands : Post Office Bay, Charles Island ; 

 July 27, 1938. One specimen (U.S.N.M. no. E.5621). 



Notes. — This specimen measures 44 by 39 mm. ; the longest primary 

 spines are 35 mm. long. There are 6 pore pairs above the ambitus and 

 5 below. The test is white, more or less tinged with purple aborally ; 

 the spines vary from deep purple to black. 



ENCOPE PERSPECTIVA L. Agassiz 



Locality. — Lower California: off Punta Gorda, Cape San Lucas; 

 off rocky shore to west, and San Jose del Cabo Bay; 6-10 fathoms 

 (11-18 m.) ; July 19, 1938. One specimen (U.S.N.M. no. E.5635). 



Note. — The specimen is 95 mm. long. 



ENCOPE MICROPORA L. Agassiz 



Locality — Lower California : off Punta Gorda, Cape San Lucas ; 

 off rocky shore to west, and San Jose del Cabo Bay ; 6-10 fathoms 

 (11-18 m.) ; July 19, 1938. Sixteen specimens (U.S.N.M. no. 

 E.5620). 



Note. — The specimens vary from 10 to 66 mm. in length. 



EXPLANATION OF PLATES 

 Plate i 



Fig. 1. Ophiocomella pavva. a "-armed specimen from Clipperton Island, aboral 

 view (U.S.N.M. no. £.5639)- X 3- 



Fig. 2. Ophiocomella parva, another 7-armed specimen from Clipperton Island, 

 oral view (U.S.N.M. no. E.5639). X 3- 



Fig. 3. Ophiocomella schmitti, n. sp., the type specimen from Narborough Island, 

 Galapagos, aboral view (U.S.N.M. no. E.5638). X 3- 



Fig. 4. Ophiocomella schmitti, n. sp., the type specimen from Narborough Island, 

 Galapagos, oral view (U.S.N.M. no. E.5638). X 3- 



Figs. 5, 6. Ophiothrix galapagcnsis, two specimens from James Island, Gala- 

 pagos, aboral view, showing variation in the spinulation of the 

 disk (U.S.N.M. nos. E.5613 [fig. 6] and E.5614 [fig. 5l). X 2. 



Plate 2 



Fig. 7. Ophionereis roosevelti, n. sp., the cotypes from Albemarle Island, Gala- 

 pagos, aboral view (U.S.N.M. no. E.5618). X 2. 



Fig. 8. Ophionereis roosevelti, n. sp., the cotypes from Albemarle Island, Gala- 

 pagos, oral view (U.S.N.M. no. E.5618). X 2. 



